Smoothing and polishing machine.



No. 809,420. PATENTED JAN. 9, 1906. L. A. BERRY.

SMOOTHING AND POLISHING MACHINE.

APPLIOATION PIL'BD FEB. 15.1904.

auuznrot LEROY A. BERRY, OF HARTFORD, MAINE.

SMOOTHING AND POLISHING MACHINE.

Specification of Letters Patent.

Patented Jan. 9, 1906.

Application filed February 15, 1904:. Serial No. 193,720.

To all whom it may concern:

Be it known that I, LEROY A. BERRY, a citizen of the United States, residing at Hartford, in the county of Oxford and State of Maine, have invented certain new and useful Improvements in Smoothing and Polishing Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in machines for smoothing and polishing rough surfaces.

The object of the invention is to provide a machine of this character by which large surfacessuch as floors, counters, &c.may be quickly smoothed.

With these and other objects in view the invention consists of certain novel features of construction, combination, and arrangement of parts, as will be more fully described,-and particularly pointed out in the appended claim.

In the accompanying drawings, Figure 1 is a side elevation of a smoothing-machine constructed in accordance with the invention. Fig. 2 is a top plan view of the same. Fig. 3 is a vertical transverse sectional view. Fig. 4 is a side elevation of several forms of smoothing disks or rolls. 1

Referring more particularly to the drawings, 1 denotes the machine, which consists of a forward gear-supporting carriage 2 and a rear seat-supporting carriage 3. The forward gear-supporting carriage 2 comprises an axle 4, onthe ends of which are mounted forward supporting-wheels 5. To the axle 4 is pivoted the lower ends of standards 6, which converge upwardly and have journaled in their upper ends a transversely-disposed shaft 7, on the ends of which are fixed oppositely-projecting crank-handles 8, by which said shaft may be turned. On the shaft 7 is also fixedly mounted a sprocket-wheel 9. Midway between the upper and lower ends of the standards 6 is journaled a horizontal transversely-disposed counter-shaft 10, on which is fixedly mounted a sprocket-pinion 12, which is connected with the sprocketwheel 9 by a sprocket-chain 13. On the shaft 7 is also mounted a sprocket-wheel 14, which is connected by a chain 15 with a sprocket-pinion 16, fixed on a shaft 17, which is journaled in the outer ends of forwardlyprojecting bars 18, which are fixed at their inner ends to the lower ends of the standards 6. The outer ends of the bars 18 are connected to the upper ends of the standards 6 by inclined brace-bars 19. On the shaft 17 is fixed a roll 20, formed of cork or other light yielding material, to which is applied a coat of sand or other abrasive substance.

To the axle 4 is secured the forward end of the seat-supporting carriage 3, comprising an axle 21, on the ends of which are mounted supporting-wheels 22. To said axles is connected two forwardly-converging horizontally-disposed bars 23, which are pivotally connected at their forward meeting ends to the axle 4 at a point midway between the ends of the same, as shown. On the bars 23 is mounted a pyramidal-shaped seat-supporting frame consisting of forwardly-projecting upwardly-inclined converging bars 24, which are connected at their lower ends to the rear ends of the bars 23 and are connected together at their upper ends and to a forwardly and downwardlyinclined bar 25, which is connected at its lower end to the forward ends of the bars 23. The bars 24 are connected near their upper ends by a cross-bar or brace 26. On the upper ends of the bars 24 and 25 is secured a seat 27, upon which the operator sits.

In Fig. 4 is shown a number of disks 28, having peripheries of different forms, said .disks being adapted to be arranged on the shaft 17 in place of the roll 20. The surfaces of the disks 28 are coated with an abrasive substance like that of the roll 20 and are adapted to be used in smoothing irregular surfaces.

In using the machine the operator sits on the seat 27 and grasps the crank-handles 8 and turns the same to rotate the shaft 7 and sprocket-wheel 9, which motion is transmitted to the roll-shaft 17 through the intermediate gearing, hereinbefore described, to rotate the smoothing roll or disks. The machine may be propelled or moved over the surface to be planed by the feet of the operator, or the operator may place his feet on the front axle and cause the machine to be moved over the surface treated thereby by the tractive force of the revoluble abrasive rolls or disks. The hinged or pivotal connection of the gear and roll supporting frame with the main axle will permit the same to raise and ride over uneven or curved surfaces, while the laterally-pivoted connection of the seatsupporting carriage with said prising an ambulant carriage, a frame connected to and projecting from the front end thereof, an abrasive roll mounted in the frame, and driving means for said roll comprising handcranks and sprockets also mounted in said frame, said roll and driving means being adjustable in a vertical plane by the pivotal movement of said frame.

In testimony whereof I have hereunto set my hand in presence of two subscribing Wit- HGSSES LEROY A. BERRY.

Witnesses WALTER A. TURNER, ALFRED COLE. 

